hpftodit(1) — Linux manual page

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hpftodit(1)              General Commands Manual             hpftodit(1)

Name         top

       hpftodit - create font description files for use with groff -Tlj4

Synopsis         top

       hpftodit [-aqs] [-i n] tfm-file map-file output-font

       hpftodit -d tfm-file [map-file]

       hpftodit --help

       hpftodit -v
       hpftodit --version

Description         top

       hpftodit creates a font file for use with a Hewlett-Packard
       LaserJet 4-series (or newer) printer with the grolj4(1), output
       driver of groff(1), using data from an HP tagged font metric
       (TFM) file.  tfm-file is the name of the TFM file for the font;
       Intellifont and TrueType TFM files are supported, but symbol set
       TFM files are not.  map-file is a file giving the groff names for
       characters in the font; this file should consist of a sequence of
       lines of the form
              m u c1 c2 ... [# comment]
       where m is a decimal integer giving the MSL (Master Symbol List)
       number of the character, u is a hexadecimal integer giving the
       Unicode value of the character, and c1, c2, ...  are the groff
       names of the character (see groff_char(7) for a list).  The
       values can be separated by any whitespace; the Unicode value must
       use uppercase digits A–F, and must be without a leading “0x”,
       “u”, or “U+”.  Unicode values corresponding to composite glyphs
       are decomposed; e.g., “u00C0” becomes “u0041_0300”.  The name for
       a glyph without a groff name may be given as uXXXX if the glyph
       corresponds to a Unicode value, or as an unnamed glyph “---”.  If
       the given Unicode value is in the Private Use Area
       (0xE000–0xF8FF), the glyph is included as an unnamed glyph.
       Refer to groff_diff(1) for additional information about unnamed
       glyphs and how to access them.

       Blank lines and lines beginning with “#” are ignored.  A “#”
       following one or more groff names begins a comment.  Because “#”
       is a valid groff name, it must appear first in a list of groff
       names if a comment is included, e.g.,
              3   0023   #   # number sign
       or
              3   0023   # sh   # number sign
       rather than
              3   0023   sh #   # number sign
       which will treat the first “#” as the beginning of the comment.

       The groff font file is written to the specified output-font; if
       this operand is “-”, the font file is written to the standard
       output stream.

       The -s option should be given if the font is special (a font is
       “special” if groff should search it whenever a character is not
       found in the current font).  If the font is special, it should be
       listed in the fonts command in the DESC file; if it is not
       special, there is no need to list it, since groff can
       automatically mount it when it's first used.

       If the -i option is used, hpftodit automatically will generate an
       italic correction, a left italic correction and a subscript
       correction for each character (the significance of these
       parameters is explained in groff_font(5)).

Options         top

       --help displays a usage message, while -v and --version show
       version information; all exit afterward.

       -a     Include characters in the TFM file that are not included
              in map-file.  A glyph with corresponding Unicode value is
              given the name uXXXX; a glyph without a Unicode value is
              included as an unnamed glyph “---”.  A glyph with a
              Unicode value in the Private Use Area (0xE000–0xF8FF) is
              also included as an unnamed glyph.

              This option provides a simple means of adding Unicode-
              named and unnamed glyphs to a font without including them
              in the map file, but it affords little control over which
              glyphs are placed in a regular font and which are placed
              in a special font.  The presence or absence of the -s
              option has some effect on which glyphs are included:
              without the -s option, only the “text” symbol sets are
              searched for matching glyphs; with the -s option, only the
              “mathematical” symbol sets are searched.  Nonetheless,
              restricting the symbol sets searched isn't very selective—
              many glyphs are placed in both regular and special fonts.
              Normally, the -a option should be used only as a last
              resort.

       -d     Dump information about the TFM file to the standard output
              stream; this option can be useful for ensuring that a TFM
              file is a proper match for a font, and that the contents
              of the TFM file are suitable.  The information includes
              the values of important TFM tags, and a listing (by MSL
              number for Intellifont TFM files or by Unicode value for
              TrueType TFM files) of the glyphs included in the TFM
              file.  The unit of measure “DU” for some tags indicates
              design units; there are 8782 design units per em for
              Intellifont fonts, and 2048 design units per em for
              TrueType fonts.  Note that the accessibility of a glyph
              depends on its inclusion in a symbol set; some TFM files
              list many glyphs but only a few symbol sets.

              The glyph listing includes the glyph index within the TFM
              file, the MSL or Unicode value, and the symbol set and
              character code that will be used to print the glyph.  If
              map-file is given, groff names are given for matching
              glyphs.  If only the glyph index and MSL or Unicode value
              are given, the glyph does not appear in any supported
              symbol set and cannot be printed.

              With the -d option, map-file is optional, and output-font
              is ignored if given.

       -i n   Generate an italic correction for each character so that
              the character's width plus the character's italic
              correction is equal to n thousandths of an em plus the
              amount by which the right edge of the character's bounding
              is to the right of the character's origin.  If this would
              result in a negative italic correction, use a zero italic
              correction instead.

              Also generate a subscript correction equal to the product
              of the tangent of the slant of the font and four fifths of
              the x-height of the font.  If this would result in a
              subscript correction greater than the italic correction,
              use a subscript correction equal to the italic correction
              instead.

              Also generate a left italic correction for each character
              equal to n thousandths of an em plus the amount by which
              the left edge of the character's bounding box is to the
              left of the character's origin.  The left italic
              correction may be negative.

              This option normally is needed only with italic or oblique
              fonts; a value of 50 (0.05 em) usually is a reasonable
              choice.

       -q     Suppress warnings about characters in the map file that
              were not found in the TFM file.  Warnings never are given
              for unnamed glyphs or by glyphs named by their Unicode
              values.  This option is useful when sending the output of
              hpftodit to the standard output stream.

       -s     The font is special.  This option adds the special command
              to the font file, and affects the order in which HP symbol
              sets are searched for each glyph.  Without the -s option,
              the “text” sets are searched before the “mathematical”
              symbol sets.  With the -s option, the search order is
              reversed.

Files         top

       /usr/local/share/groff/1.23.0/font/devlj4/DESC
              device description file

       /usr/local/share/groff/1.23.0/font/devlj4/F
              font description file for font F

       /usr/local/share/groff/1.23.0/font/devlj4/generate/*.map
              symbol mapping files

See also         top

       groff(1), groff_diff(1), grolj4(1), groff_font(5), lj4_font(5)

COLOPHON         top

       This page is part of the groff (GNU troff) project.  Information
       about the project can be found at 
       ⟨http://www.gnu.org/software/groff/⟩.  If you have a bug report
       for this manual page, see ⟨http://www.gnu.org/software/groff/⟩.
       This page was obtained from the project's upstream Git repository
       ⟨https://git.savannah.gnu.org/git/groff.git⟩ on 2021-04-01.  (At
       that time, the date of the most recent commit that was found in
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groff 1.23.0.rc1.56-5346-dirty3 December 2020                 hpftodit(1)

Pages that refer to this page: groff(1)lj4_font(5)